FABRICATION OF POLY POROSITY MICROSTRUCTURES

摘要

1,222,828. Sintered porous polyphenylene. NORTH AMERICAN ROCKWELL CORP. 4 Jan., 1968 [5 Jan., 1967], No. 53661/67. Headings C3C and C3R. Sintered porous polyphenylene is made in Example 5 by isostatic compaction of a mixture of 33% v. polyphenylene particle size 1 micron with 67% v. urea of average particle diameter 37 microns (minus 200 mesh Tyler) and sintering in argon at 1830‹ F. for 1 hour. Density was 0À5 g./c.c. giving 62% porosity.